The third (and hopefully final) RC for the 1.86.0 Beta release is now available. Available at: https://archives.boost.io/beta/1.86.0.beta1/source/ The SHA256 checksums are as follows: a632d1e1465804b26f4d73112f1142c89caf74b026395df2e63a8c8972ac3ab0 boost_1_86_0_b1_rc3.tar.gz e061d83644568178ddece4bd3e241fb2656f49d6157c5d9fbff6c2fa74b1e328 boost_1_86_0_b1_rc3.zip e7f07bbc14915469b1ef80337c16e7a592f3eb547ba2cca828253c0a32372399 boost_1_86_0_b1_rc3.tar.bz2 91dcd8f980362c1c32bf8cc547c547fb02619bea877738b478c052926edc6a2d boost_1_86_0_b1_rc3.7z Changed libraries between RC2 and RC3: Boost.Process fixed some build issues on Windows As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy. -- The Release Managers